Immergas AUDAX PRO 4 V2 - Selection of Refrigerant Pipe; Keep the Refrigerant Pipe Clean and Dry

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- Since the condensing unit contains refrigerant R-32, make sure
that it is installed, used and preserved in a room with a surface
larger than the minimum specied in the following table:
Minimum area required for the room (A, m
2
)
m (kg) Ceiling-mounted Wall-mounted On the ground
≤ 1.842 No requirement
1.843 3.64 4.45 28.9
1.9 3.75 4.58 30.7
2.0 3.95 4.83 34.0
2.2 4.34 5.31 41.2
2.4 4.74 5.79 49.0
2.6 5.13 6.39 57.5
2.8 5.53 7.41 66.7
3.0 5.92 8.51 76.6
3.2 6.48 9.68 87.2
3.4 7.32 10.9 98.4
3.6 8.20 12.3 110
3.8 9.14 13.7 123
4.0 10.1 15.1 136
4.2 11.2 16.7 150
4.4 12.3 18.3 165
4.6 13.4 20.0 180
4.8 14.6 21.8 196
5.0 15.8 23.6 213
- m: Total refrigerant load in system
- A: Minimum required surface of the oor
- IMPORTANT: it is mandatory to take the above table into
consideration or the requirements of local laws regarding the
minimum installation surface of the rooms.
- e minimum installation height of the indoor unit is 0.6 m
when installed on the ground, 1,8 m when wall-mounted and
2.2 m when ceiling-mounted.
8.2 SELECTION OF REFRIGERANT PIPE.
Capacity of outdoor unit (kW)
Liquid side
(mm)
Gas side
(mm)
AUDAX P
RO 4 V2
 6.35  15.88AUDAX P
RO 6 V2
AUDAX P
RO 9 V2
- Install the refrigerant pipe depending on the capacity of the
outdoor unit.
- Make sure to use C1220T-1/2H (semirigid) pipes when over
Ø19.05 mm. If you use C1220T-O (so) pipes for Ø19.05, it
could rupture and cause injury.
Degree of hardening and minimum thickness of refrigerant pipe
Outside diameter
(mm)
Minimum thickness
(mm)
Degree of hardening
 6.35 0.7
C1220T-0
 15.88 1.0
 15.88 0.8
C1220T-1/2H O
C1220T-H
8.3 KEEP THE REFRIGERANT PIPE CLEAN AND DRY.
- To prevent foreign bodies or water from entering the pipe, they
must be sealed with plugs.